Pressure-regulator.



No. 746.560. PATENTED DEC. 8, 1903.

s. L. MQADAMS. PRESSURE REGULATOR.

APPLICATION FILED FEB. 9, 1903.

no MODEL.

UNITED STATES iatented December 8, 1903.

PATENT OFFICE.

PRESSURE-REGULATOR.

SPECIFICATION formingpart of Letters Patent No. 746,560, dated December8, 1903.

Application filed February 9,1903. Serial No. 142.540- (No model.)

To all whom it may concern.-

Be it known that I, SYLVESTER L. MCADAMS, a citizen of the United Statesof America, residing at Beaverfalls, in the county of Beaver and Stateof Pennsylvania, have invented certain new and useful Improvements inPressure-Regulators, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements inpressure-regulators, and relates particularly to that type which areadapted to be connected to a main supplyline and are adapted to receivethe maximum pressure from said supply-line and reduce said maximumpressure to a minimum amount to be delivered to the line leading to thepoint of consumption. Devices of this nature are employed in connectionwith naturalgas mains and are interposed in the tap-line connected tothe main supply and leading to the point of consumption; and myinvention has for its object the construction of a regulator of thistype of extremely simple construction, cheapness in cost of manufacture,and effectiveness in operation; further, to provide for the balancing ofthe governing-valves and the connecting of the valve-stem with thediaphragm in such a manner as to insure easy and perfect working of theparts. 7

In the accompanying drawings, forming a part of this application, Ihaveshown a practical embodiment of my invention and in describingthesame in detail will have reference to said drawings, and in the samelike numerals of reference will be employed for designating like partsthroughout both views, in which Figure 1 is a central vertical sectionalview of my improved pressure-regulator. Fig. 2 is a horizontal sectionalview thereof, taken on the line 2 2 of Fig. 1.

To put my invention into practice, I construct a shell or casing-body 1,provided with an inlet 2 and an outlet 3, these ports being in oppositesides of the body orshell and connecting, respectively, with thesupply-main and with the pipe or line leading to the point ofconsumption.

The shell or body is somewhat tapered, being widest at its upper end andprovided with an annular flange 4:, whereby the diausual port 9.

phragm 5 may be secured between said flange and the removable cap orcrown-piece 6.

This cap or crown-piece is provided with a dome 7, threaded thereinto toreceive the pressure-regulating spring 8 and is preferably made of alength suitable to receive a considerable portion of said spring wherebyto insure its. being properly held. This cap or crown-piece 6 is alsoprovided with the ,A hanger 10 is suspended centrally from the diaphragmby a bolt 11, that passes through a disk 12 on the upper face of saiddiaphragm, the nut which holds this bolt receiving the lower end of thespring 8 and holding said spring at said lower end. In the hanger 10,which has two parallel jaws, is pivotally secured one end of a lever14:, the other end of which is pivotally held in a clevis 15, which ispreferably constructed with a thread ed shank to be engaged in the Wallof the shell. The lever 14 is pivotally connected bya link 16 with thearm 17 of a bell-crank lever, which latter is pivotally supported from abracket or arm 18, that in practice is generally constructed with athreaded stud or'shank, as shown, for engagement in the shell or casing.The leg or arm 19 of the bell-crank lever works in a slot 20 providedtherefor in a valve-stem 21. This valve-stem 21 carries valves 22 and 23011 its respective ends, which valves are each provided with wings 24c,forming guides which operate in the ports 25 26, which are in line witheach other in the partition-wall 27. This partition incloses theinlet-port and extends to a point opposite said outlet-ports, as at 27In practice the spring 8 is set to the desired pressure, and the gas orother fluid entering through port 2 through port 26 is received in thechamber 28 and passes to the outlet 3.

The pressure in the chamber is against valve 23, whereby to equalize andbalance the pressure on the valves, and should the pressure in chamber28 exceed the pressure given the spring 8 the diaphragm 5 is elevated,and through the medium of lever 14, link 16, and the bell-crank leverthe valves are moved toward the closed position whereby to close orpartially close the inlet, and as the excess pressure in chamber 28 isrelieved the diaphragm is acted upon by the spring whereby to again openthe valves to maintain the desired minimum pressure. The valves inpractice are preferably constructed with the gaskets or valve-seats, asshown, to insure effective seating thereof.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

The combination with the casing formed with inlet and outlet ports, of apartition in- 1 0 closing said inlet-port and extending to a pointopposite said outlet-port, said partition being formed with aliningopenings, a pair of valves provided with wings slidably mounted in the 0peningsof said partition, a valve-stem arranged exteriorly of saidpartition connecting said valves, and means arranged in said casingcontrolled by pressure for actuating said stem.

In testimony whereof I aflix my signature in the presence of twowitnesses.

' SYLVESTER L. MOADAMS. Witnesses:

S. W. ROUZER, J 0s. 0. RoUzER.

